Environmental Noise level meter Model 6224&6226

Model

6226

6224

Type

Integrating sound level meter

Integrating precision sound level meter

Applicable

Sound level meter

Precision sound level meter

standards

JIS 1502 IEC 651・804 Type 2

JIS 1505 IEC 651・804 Type 1

Measurement range

28～130dB（A） 33～130dB（C）

22～130dB（A） 32～ 130dB（C）

JIS

38～130dB（F）

38～130dB（F）

Measurement frequency range

20Hz～8kHz

20Hz～12.5kHz

Microphone 7052N

1/2・Electret prepolariged microphone

7146N 1/2・Electrets prepolariged microphone

Level range control

10dB 6steps

Linearity range

100dB-

Response

FAST、SLOW、IMPULSE

Frequency weighting

A、C、FLAT Measurement Lp: Sound pressure level parameters Leq: Equivalent continuous A-weighting sound pressure level LE: Sound exposure level Lmax: Maximum sound level Lmin: Minimum sound level Lx: Percentile level (5 values of free select)

Response time for constant input signal

1s,3s,5s,10s,1min,5min,10min,30min,1h,8h,24h,Manual(Max.199h59m59s)

Sampling time

20.8μs(Leq) 10ms(Lmax、Lmin)

Lx sampling time

100ms

Display Digital

Liquid crystal and back light Digits: 4, Display period: 1s

Bar warning

Display period: 0.1s

Warning

Over: +10dB from upper limited scale Under: -0.6dB from lower limited scale

Battery Memory

4-steps display Memorize the sound pressure level or operation level

Date Pause

Built-in (year/month/day/hour:minute:second) Pause/Data clear

Calibration AC

output Electric calibration with internal oscillator (1kHz SINE wave) 1Vrms for full scale Output impedance: 600Ω, resistance: more than 10kΩ

DC output

2.5V for full scale, 0.25V/10dB Output impedance: 50Ω, resistance: more than 10kΩ

I/O Terminal

Interface: RS-232C, Data: 8bits, Stop: 2bits, Parity: not, Baud rate: 4800, 9600, 19200bps (direct output to printer, control and output data to computer)

Battery type

Four 1.5V Alkaline cells IEC type LR6, Optional AC adapter

Life time

Alkaline dry cell: Approx. 24hours (Magnesium dry cell: 11hour) When switch ON a back light: Approx. 1/3

Ambient condition

-10~+50℃　30～90%RH (not dew condensation)

Dimensions 85W×284H×48D

85W×310H×48D

Weight

Approx. 370g-